Automobile brake



sept. 7, 1926.

,l sa c). vvrirrE AUTOMOBILE BRAKE `Filed August 4, 19.23

zvsheets-sheet 1 Sept. 7 1926. v s. O. WHITE AUTOMOBILE BRAKE Filed August 4, 1923 4 2 Sheets-shea? INVENTOR Patented Sept. 7, 1926.

. UNITED STATES .1,599,191 P apnea( SAMUEL` o.` WHITE, 4,or "MUNCIE, INDIANA, AssIeNoE 'ro 'WARNER GEAR -ooM-EANY,`

Y `or MUNCIE, INDIANA, A conroEArIoN or INDIANA.

AUTOMOBILE BRAKE.

Application led August 4, 1923. Serial Nog-655,553.

My invention relates to improvement in brakes for automobiles and is 'particularly in :proximityto and supported bythe transr mission `case of the automobile 'and operate; uponadrum -mounted on the drive shaft. One of thev objects of myinvention fis .toV

provide a 'brake which may ybe cheaply manufactured, the parts of which are -re-V duced 7to ainini1num, which may be readily assembled and which will not 4be vrendered inoperative `by'accumulationV of dirt and rust and by neglect.

yFor the purpose of disclosingmy invention, I havel illustrated one embodiment thereof in the accompanying drawing in Fig. :1 is a side elevation of an lautomobile transmission v`case showing my brake .attached; g

Fig. VA2 is a :rear elevation thereof showing particularly `the brake and its mounting; Fig. 3 is a plan view partly in section.; Fig. 4 is a detail section on the line of Fig. 3, and

Fig. 5 is a detailsection of thecompressing bolt and its operating mechanism.

In the preferred embodiment of my invention `the brake is adapted to besupported l upon the rear end of the transmission heusr ing 'and' operated by a v,hand rlever.pivotally 'mounted on the transmission housing.l

The brake comprises the usual metallic vbrake, band 1 which, as is usual in `brakes of this .type,iis provided with a lfrictioulining V2. The backV of the. band is provided .with a t U shaped yanchor -clip 3, fthefreegends of which are adapted to be Arivetedflto .the

Vband'and which is adapted ytogreceive the' end- '4 of a supporting 'bracket` 5.-V This bracket is secured to .the yrear wall of the'.

transmission housing 'by cap screws band the `bracketmay. beeither formed lof a castA ing or from 4a suitable stamping. By pro-y viding a supporting bracket of .this charfacter, Iam enabled to manufacture tthe 'same cheaply as #the @asti-11g,Or-.etempins-mer .be `relatively rrough ...and the only finishing requredis theifnshngnf.that@ andlbot.-

, .An .':sdilfste'g .Srew f7 sessies' j through the @nicher slip and harngiheeedd servesas a means kfor ,adjusting the band relativelyto the-brake drum.4 l

The free ends of the yband re adapted to becontgr'acted rto set :the vbrake.; byv a compressionbolt 8. To .this -end one` free end of `the `band has. riveted 'thereto a top lug or -bracket 9 and the opposite free end .has rivetedthereto a second' orA bottom vlug 10. This 1bottom lug .10 preferably in Athe'fvorni of a icasting for forging having an arm by which it is secured by rivets or otherwise, to vthe brake band Iand provided V.with a bossl 11 having 4an opening through which the compression boltpasses. The upperfendof the `compression bolt extends through lan opening .inl thetop lug 9 and .has itsV end threaded to receive an vadjusting and stop with a head 111' offset from the Vcenter line .and .having ya transverse opening 15 therein. ',lahe lbolt .8 4is `operated to compress or contract 1 the Tband Iby `means of a .cam member 16. Thiscam .member comprises a .pair :of substantially bell crank arms` 17, v.theshorter 4leg o 'f'which forms `theoperating cam. The

two arms .are 1 preferably Vformed efrom Y stampings; and are .hung one `oneach side of the 'head 14, on a pivotY p inf18 extending It hroughthe 'opening I15. `AAThe upperv edges lof the two ,plates .operate .inVV a milled :slot 19 on theunder surface. of the bottomlug 10..

and the lower ends of the long arms vareconnected byfa linltrod() with the hand lever 21'. The rear :end ofthis link vrod'is .interposed between .the two platesof the cam member` and is connectedtheretoby Aa pin 22 .passingthrough'the plates and an .open- Ving in the rod. .B yformingtheamfmeme ber two plates fas .above described-I v.am ,enabled .to 'get 'zsuilicient strength from simple stampingswhicli,sdue.to the faictthat f themetal.i s aratijvely..-thin,.-will,5enable Imeto Creta smoothlgyisheared cam fgsurfaee.

tispull Qonlthe .nam memberyis transversely-Lof :the ,planenf the l.fdruin `there iis @a I oil1 the drum in applying the brake and to prevent this I provide a stop which preterably takes the form of a stamping 23, the

rear end et which is secured to the transmission-casing by one of the cap screws 24E which secures in position the brakesector of the hand lever. rThe lower' edge of this bracket or stamping 23 is provided with an inturned lipr 25 which engages under the brake'sector and prevents the front end 01"' the bracket trom dropping. rIhe front end of the bracket is provided with a guide lip 27 extending at right'angles to the bracket and adapted to engage in a 'vertical slot 28 torined in the side ot' the boss 1l. By this arrangement while theA boss is permitted a tree verticall movementduring the operation ot the brake, any transverse movement ot the endsY ot the brake band is prevented. This bracket :23 is also provided with an upturned horizontally disposed lug 29 kon which is adapted to vrest the lower end ot a set screw'BO passing through `an ear 3l formed on the boss l1' and held in its adjusted position by a lock nut 32. This set screw supports the Weight of the brake band when releasedr and also provides a means tor adjustving the brake band relatively to the drum and permits of an accurate and close adjustment forV clearance between the brake band and the drum.

.I claim as my invention i lr. In an automobile brake, in combination, la'brake band, an anchorr clip secured to said band at a point substantially equidistant ot its ends, a supporting bracket adapted tov be secured to asupporting member and having an end engaging in said anchor clip for supporting the band, a compression bolt passing through openings in the ends ot the band and connected to one of the ends thereot, a cam member secured to said bolt and engaging the other end of the band and a guide member having engagement with the band and preventing lat-eral displacement of Athe Iends ot the band while permitting the ends' to move longitudinally.' 4 i 2. In an automobile brake, in combination. a bra-keV band, means for supporting the band at a point substantially equidistant of its ends, one of the ends of thev band having an elongated guide bearing, a compression bolt connected toone end of the band and passing through said guide bearing,- a cam member connected to said bolt and engaging the end of theV band and a Vbracket having a sliding connection with the guide bearing which permits the end or" the band to move in one plane but prevents displacement ot the band'in atransverse direction.

'In an automobile brake, the combination, Ywith ,a transmissioncase, of a brake lever pivotedron said case, a toothed sector ',boltedon saidfcase for co-,operation with a dog on said lever,'av brake band at the end of said transmission casing, a bracket secured to said transmission casing and having an extension connected t0 the band at a point substantially equidistant ot the ends otl the band and supporting the band, a second bracket secured on said transmission casing Y engaging sais anchor clip, `one or" the ends of said band having an elongated boss thereon provided witha compression bolt opening and having on its side a vertically extending guide slot, acoinpression bolt securedto one of theV ends ot the band and passing through said boss, a cam operating member secured to said -compression bolt and engaging the opposite end of the band and a bracket having a lip engaging said slot to prevent transverse displacement oi the band while permitting vertical movement thereo t. Y

5. In an automobile brake,-in combination, a brake band, means for supporting said'band at a point equidistant of its ends, one of the ends ot said band having an eX- tension provided with a vertically extending slot, a bracket having a lip engaging in said slot for preventing transverse displacement ot said end` and a set screw onsaid end arranged to engage aportion ot said bracket to support said end and provide means tor adjusting said band relatively to the brake drum. i Y l 6. In anv automobile brake, inv combination, abrake band, means for supporting the band at a point substantially equidistant of its ends, an extension ear secured to one of the ends of the band andhaving an opening therein, .a second extension ear secured to the kother end otthe band and provided with anelongated boss, a compression bolt lpassing through an opening insaidboss and the opening m the opposite extension ear, a

nuton saidV bolt engaging v'said extension, a

Cam on thevopposite end ofthe bolt arranged to engage the boss extension, a coil spring interposed between said boss and the opposite end ear and a-bracket member having a lip engaging a vertically extending slot in said boss for preventing transverse displacement ot the ends of the band when the cam is operated to contract saidb'and. f' Y 7. In an automobileV brake, in combinat1on,"a transmission casing, a hand lever mountedlonsaid casing and a'toothed sector -mounted on one side of said casing for cooperatioirwithtlie dog of the hand lever, '2i-"brake band, a bracketsecuredto the end of the transmission casing and connected to the anchor clip of the brake band for supporting said band, a second bracket mount.

ed on one of theV bolts of the toothedvsector and having an ear engaging under said sector to hold said bracket in substantiallyV `a horizontal position, said bracket having at its free end an ear engaging a. slotted member onv the brake band to permit free expansion and contraction of the ends oit' the band and prevent transverse distortion ofthe band.

8. The combination with a transmission' casing, of'a supporting bracket secured Vto one end of the casing, a brake band having` an anchor clip engaged by said supporting bracket and supporting the band, a compression bolt passing through openings in the ends of the band andy adjustably connected to one end thereof, a rocking cam member secured to said bolt ,and engaging the other end of the band, a guide army secured to the transmission frame and having engagement with the band and preventing lateral displacement of the band While permitting the ends to move longitudinally.

9. `In an automobile brake, in combination, a brake band, means for supporting said band at a point equidistant of its ends,

one of the ends of said band having lan extension provided with a vertically extending slot and a bracket having alip engaging in said slot for preventing transversedisplacement of saidend. f

10. In anautomobile brake, in combination, a transmision casing, a hand lever mounted onV said casingv and a toothed sector bracket having at its free end an earengaging a slotted memberon kthe brake band to permit free expansion and contraction of the ends of the ,band and prevent transverse v distortion of the band.

In Witness whereof, I SAMUELO. WHITEV have hereunto set my hand at Muncie, Indiana, this thirty-lirst day of July, A. D. one lthousand nine hundredand twenty three.

sAMUnL o. WHITE. 

